MDW (Chicago) to COS (Colorado Springs) flights arrive on time 83% of the time. The most reliable airline on this route is Southwest Airlines at 83%. The average delay is 42 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Source: Bureau of Transportation Statistics. Updated August 2026.MDW → COS
MDW (Chicago) to COS (Colorado Springs)
MDW → COS on-time performance by month
24
25
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
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This route is on time most of the time. About 83% of flights arrive on schedule.
Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Accurate?
Accurate?
Good to know
Departing from MDW
80% on timeTSA is currently ~5 min. Best time: 4 AM (about 5 min).
Arriving at COS
79% on timeWhen flights into COS are late, the average delay is 73 minutes. Build buffer if you have ground plans.
If connecting at COS: TSA is ~5 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
Check what Southwest Airlines owes you — refund rights, action plan, complaint email. Free.
Flying out of MDW? We'll brief you.
Delays, TSA, weather, gates — we'll let you know if something matters.
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Data last updated August 2026. Source: Bureau of Transportation Statistics.